Bridge crane is a common crane in the current market, with a large and frequent usage, which leads to weak durability of bridge crane accessories. Therefore, Shandong bridge crane manufacturers will explain how to inspect and maintain the damaged electric hoist of bridge cranes.

1. It is necessary to carefully check the main control circuit and cut off the power supply of the hoist motor; Prevent the main and control circuits from suddenly supplying power to the three-phase motor and causing it to burn out, or prevent the hoist motor from coming into operation and causing significant harm.

2. Next, pause and jog the switch to start, carefully inspect and analyze the control appliances and circuit conditions inside. Repair and replace electrical appliances or circuits. Until it is ensured that there are no faults in the main and control circuits; Only then can it be started.

3. When the voltage at the motor end of the hoist is found to be lower than 10% compared to the rated voltage, the goods cannot be started and operated normally. At this point, it is necessary to use a multimeter to measure the pressure.

The damage caused by diagonal pulling is a human operation problem. It is not a quality issue with electric hoists. Currently, it is unknown how many accessories need to be replaced. Due to the large number of replacement parts, the equipment was not fully repaired on site, and the accessories were also incomplete. The expenses for maintenance personnel on business trips are also relatively high. Taking all factors into consideration, the manufacturer suggests returning the electric hoist for repair. The user shall bear the round-trip shipping cost, accessory cost, maintenance cost, packaging cost, etc. for the electric hoist to be returned to the factory for repair. This is a fast, cost-effective, and convenient method.